Ball-cock.



L. B. THOR'E.

BALL 000K.

APPLICATION FILED DBO. 26, 1907. 912 632, Patented Feb. 16, 1909.

2 SHEETS-SHEET 1.

WITNESSES: INVENTO I W76. J25; f5,

L. B. THoRBZ- BALL 000K.

APPLICATION FILED D110. 26, 1907.

Patented Feb. 16, 1909.

ll BHEBTB-SHEET 2.

INVENTOR.

' No. 912,632, A

Louis simmer BOSTON, MASSACHUSETTS} flint-coon.

t ,S pecificatiozi of Letters Patent.

Patented Feb. 16, 1909.

' 1 mm filed. December 2a, 1907. Serial No. 408,217.

To all whom it 451::

Be it known that ,I, LOUIS B.

Trton'n, a

. citizen .of theUnitedStates, of Boston, in

'the county of Suffolk and State of Massachusetts, have invented a newand useful Imrovement in Ball-Cocks, of which the folowing, taken inconnection with the accompanying drawings, is a specification.

My invention relates to improvements in ball-cock apparatusfand'eonsistsin important changes and additions which may be best understood byreference to the full description in c'onnectionlwith 'the accompanyingdrawings, .in which- Figure 1 is a side elevation of my apparatus; Fig.2 is a front elevation of the same; Fig. 3 is a vertical longitudinalsection taken through the center; Fig. 4 is a cross-vertical sectiontaken on line l4= of n the drawings A re resents the body part of thecock and H l-I the projections extending downward and outward forconvenience in fastening the cock to the walls of the tank. The art A isfor connection with the service plpe. The head A of the cock has withinit a rotatable key B which is held in place by the screw cap A whichalso holds a suitable packing A for preventing leakage; the stem B isused for turningthe key B-when it is desired, to out oi the -flow ofwater for repairing or for. any other purpose. This key B is removableso that its seating face can be repaired and the interior of 'the cockcan be cleaned, that is, freed from sediment, etc. The lower end of thekey B has a water way W which connects with the" water way W when theapparatus is in working order. It will be noticed that the water way Wis much smaller than the way W. The capacity of the way W may be variedin different keys so as toadapt the device to different heads ofdwater;for instance, thehigher the pressure of water in the service pipe thesmaller the water way in the key B will be'made;

. thus the same body part of the cock'may be used for differentpressures.

The gravity piston C drops by its own weight and also by the force ofwater pressure at its upper end when not held up by the action of thefloat; the upper end 0 the piston C has attached by a screw or other-"wise a suitable packing P as shown in Figs. 3 and 4. The packin P is setin a recess made in the upper en of the piston O. In'

, the drawings Figs. 3 and 4, the piston is shown in the position itoccupies when the cock is open and the water flowing.

- The action of the float or ball (not shown) is as follows: hen thewater rises in the tank the stem C of the float which goes through thetubular socket L and whichis attached to the arm L and thereby to thefinger C which swings on the pivot (3*, causes fin er C to depress theouter end of the short ever C, pivoted on C and causes the inner end toact against the lower end of the piston.C and force it upward, thus brining the packing P in contact with the lower end of the key B and closingthe water way WV, that'is, regulating an preventing the flow of waterinto the tank,

a set screw D working through a bridge N serves as an adjustable stop orgage for the movement of the terminal finger piece C thus controllingthe .movement, of the float downwardly; a check nut D holdsthe'adjusting screw D in the desired position. By

releasing the set screw D to its limit the finger C will fall so as tolet the piston C drop out for the purpose of repalrlng the packing P. Byturning the set screw D down to its limit it forces the finger C downonto the lever C which pushes the piston C against the seat at thebottom of the key B, and closes the cock, thus making a shut-offindependent of the float, and closing the cock when'the float and stemare detached for re airs.

hen the flow of water leaves the key B it passes intothe water way WFig. 4, and thence downward into the pipe K and thence into the tank.

The pipe F is attached to the screw plug F and serves as arfa'rchamberto relieve the shock from the sud n checking of the flow of water. Thescrew plug F has a hole through its center as indicated in Fig. 3.

For convenience in adjusting the workmg length of the stem C of thefloat (not shown) I have the following-described device: A

short arm L extends laterally from the part Thus when it is desired to'thumb screws and R. and can be used to release the said terminal fingerand lever.

The arms M are united and kept rigid by the bridge N.

Claims.

1. In a ball-cock apparatus, a body part which has screw connections foran inlet and outlet pipe, respectively, and a main water way, a valvecasing, a head having a ground seat and containing a key, an unattachedgravity piston valve with a valve packing (p) operating in the saidcasing, the key having a passa e therethrough and a projectin seatinace, two side arms which extend rom an are attached to the said bodyart, a separate finger and lever pivotally astened between the said sidearms, a float and stem, said finger and lever operated by L said floatand stem to cause the valve to seat on the said face, a stationarybridge on the said side arms, a set screw in sa d bridge operating onsaid finger, the key being a apted to close said main waterway, to allowthe floatand stem to be detached for repairs; as and for the purpose setforth.

'2. In a ball-cock apparatus, a body part which has screw connectionsfor an inlet and outletpipe, respectively, and a main water way, a valvecasing with an opening at the top and bottom, a head having a round seatand containing a key, an unattac ed ravity 'on the said face, astationary bridge on the in said casing, the key bein adapted to closesaid main waterwa to al ow the float and stem to be detache for repairs,as and for the purpose set forth;

3. In a ball-cock apparatus, a body part which has screw connections toan inlet and outlet pipe, respectively, and a main waterway, avalvecasing w1th an opening at the top and bottom, a head having aground seat and containing a key, an unattached gravity piston valvewith a valve packing (p) operating in the said casing, the ke-y'having apassage therethrough and a seating face that projects into and below thesaid top opening of said casing, two side arms that extend from and areattached to the said body part,

a separate finger and lever pivotal 1y fastened between the said sidearms, a float and stem, said finger and lever operated by the said floatan stem to cause the valve to seat on the said face, a stationary bridgeon the said side arms, a set screw in said bridge being adapted tocontrol the movement of the said finger, lever and valve, incombination, to hold said valve in said casing and to allow said levertotilt so that the said valve can drop out of the said bottom 0 ening ofsaid casing, the key bein ada te to close said main waterway to allow te valve to be detached for repairs; as and for the purpose set forth.

In testimony whereof, I have signed my name to this specification in thepresence of two subscribing witnesses, on this twelfth day of DecemberA. D. 1907,

LOUIS B. THORE.

Witnesses:

W. P. Tnomi, Y. H. "Tnoafi.

